I got my hands on a ICON Ghost (Yellow) and a M3(Blue) both at 176... also took out my fairly weathered Star San Marino Roc for comparison (note: at altitude 5500ft).

All three discs pretty much fly as advertised for me and I have a sneaky suspicion that variances in mold/color/etc could be enough to make one fly identical to the other. So while the ghost seemed like it would fly the quickest, the M3 actually moved a bit more. WIth power all three flew strait, the M3's fade was harder than the ghost. Into a wind the ghost actually flipped. With an anney the ghost held the line much longer. I'm more hopeful of the legacy plastic's durability, but it was a bit slicker out of the box.

Overall, I'm not sure what i'm going to throw, but both are good options. The legacy is funner to throw because it's just slower and holds lines longer, but the M3 may be more consistent and a bit more resistant to the wind.

Picked up a purple 176 Icon Ghost. I like it. I was surprised at how well it handles OAT. I was throwing it alongside an M3... very different in terms of fade. The Ghost is straight with a reliable dump at the very end. The M3 had a much earlier fade but was more forward penetrating. Their flights are different enough that I could see the potential for carrying both. I was getting more distance from the Ghost though and with me being susceptible to OAT at times, the Ghost is in the bag, M3 will see the practice field.